You still don't understand. Example:
You are outside of the keep. A friendly mesmer is inside. If he drops the exit where he stands, jumps out over the walls and drops the entrance for you, you can use it to get into the keep, that's working as intended still. What they fixed was that the mesmer could drop the exit inside the keep, then walk to the gate on his side, and drop the entrance *on his side of the gate*, and you could still activate it through the gate.

You still don't understand. Example:
You are outside of the keep. A friendly mesmer is inside. If he drops the exit where he stands, jumps out over the walls and drops the entrance for you, you can use it to get into the keep, that's working as intended still. What they fixed was that the mesmer could drop the exit inside the keep, then walk to the gate on his side, and drop the entrance *on his side of the gate*, and you could still activate it through the gate.

You still don't understand. Example:
You are outside of the keep. A friendly mesmer is inside. If he drops the exit where he stands, jumps out over the walls and drops the entrance for you, you can use it to get into the keep, that's working as intended still. What they fixed was that the mesmer could drop the exit inside the keep, then walk to the gate on his side, and drop the entrance *on his side of the gate*, and you could still activate it through the gate.

Ooooh. I get you now. To stop it when for instance, dies at an area inside a keep where he can be ressed (such as bay water gate) then drops the portal where he is ressed to bring everyone inside